package collection;

import java.util.*;

/** 集合排序 */
public class SortInteger {
    public static void main(String[] args) {
        List<Integer> list = new ArrayList<>();
        Random rand = new Random();
        for (int i = 0; i < 10; i++) {
            list.add(rand.nextInt(100));
        }
        System.out.println("list原始数据:"+list);
        Collections.sort(list);
        System.out.println("list排序后"+list);
        Collections.reverse(list);
        System.out.println("list反转后:"+list);
    }
}
